Posted by **kelsee** on Saturday, April 26, 2008 at 7:02pm.

a car of mass 1360 kg descends from a hill of height 86 m at a constant speed of 20 km/h. assuming that all the potential/kinetic energy of the car goes into heat in the brakes, find the rise in temperature of the brakes (use the heat capacity (C) of the brakes to be 16kJ/C and ignore any heat losses to teh surroundings

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